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CAT 390D Excavator Hydraulic System Attachment Counterweight Removal

INTERACTIVE SCHEMATIC
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Information
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Tap Table
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X
EC-C3
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EC-C1
E-C61
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©
2010 Caterpillar, All Rights Reserved
Printed in U.S.A.
KENR7745
November 2010
390D Excavator
Hydraulic System - Attachment
WAP1-UP
WBT1-UP
KCZ1-UP
Printed in U.S.A.© 2010 Caterpillar, All Rights Reserved
Counterweight Removal
COMPONENT LOCATION
Description
Part
Number
Machine
Location
Schematic
Location
Accumulator Gp - Charged (Rtrn. Line) 335-0538 1 C-1
Accumulator Gp - Hydr. (Charged) 335-0547 2 D-4
Breather Gp 212-5467 3 A-8
Cooler Gp - Hydraulic Oil 210-8157 4 B-7
Cylinder Gp - Boom Note A 5 E-1
Cylinder Gp - Bucket Note A 6 E-2
Cylinder Gp - Stick Note A 7 E-1
Filter Gp - Oil (Hydr.)(Return) 242-6878 8 A-8
Filter Gp - Oil (Hydr.)(Return) 234-4531 9 A-8
Filter Gp - Oil (Hydraulic) 185-0336 10 B-8
Filter Gp - Oil. (Hydr.)(Case Drain, Motors) 6E-5534 11 A-7
Filter Gp - Oil. (Hydr.)(Case Drain, Pumps) 6E-5534 12 A-7
Manifold & Valve Gp - (Load Sensing) 310-0122 13 B-5
Motor Gp - Fan 247-8978 14 A-6
Motor Gp - Hydraulic Fan 225-4614 15 A-7
Motor Gp - Swing (Front) 295-9447 16 F-4
Motor Gp - Swing (Rear) 295-9446 17 F-3
Motor Gp - Travel (Left) 209-5895 18 F-6
Motor Gp - Travel (Right) 209-5895 19 F-5
Pump Gp - Fan Motor 170-9918 20 A-5
Pump Gp - Hyd, Swing 295-9678 21 A-4
Pump Gp - Hyd., Main 334-9990 22 A-3
Pump Gp - Pilot 155-9222 23 A-5
Sensor As - Press., (Load Sensing) 221-8859 24 B-6
Sensor As - Press., (Overload Warning) 221-8859 25 C-6
Sensor As - Pressure (Main Pump) 260-2180 26 A-3
Sensor As - Pressure (Swing Pump) 260-2180 27 B-5
Swivel Gp 295-9595 28 E-5
Tank As - Hydraulic Oil 227-0678 29 A-8
Valve Gp - Check 173-3429 30 A-6
Valve Gp - Check 201-9382 31 C-1
Valve Gp - Check 201-9381 32 C-8
Valve Gp - Control (Swing) 241-8929 33 E-3
Valve Gp - Main Control 295-7745 34
D-2
Valve Gp - Manifold & Reducing 140-0736 35 D-5
Valve Gp - Sol. (High Press. Cutoff) 352-6819 36 B-5
Valve Gp - Swing Cushion 116-3420 37 E-4
Valve Gp - Travel Cntrbalance, Left 155-9200 38 E-6
Valve Gp - Travel Cntrbalance, Right 155-9200 39 E-5
Valve As - Manual
4I-6188
50 F-7
Valve Gp - Check (Pilot Operated) 087-5087 51 F-7
Valve Gp - Counterweight Control 123-2515 52 F-8
Valve Gp - Pilot (Counterweight) 123-2514 53 E-8
Valve Gp - Shuttle 4T-1860 54 C-3
Attachment - Counterweight Removal
Note : Always Check Parts Manual For Your Specific Machine
Note A : Check Parts Manual For Proper Cylinder Part Number
TAP LOCATION
Tap
Number
Description
Schematic
Location
Drive Pump Output Pressure
Idler Pump Output Pressure
Load Sense Pressure (Main Hydraulic Pump)
Stroking Pressure (Swing Pump)
Pilot Pump Output Pressure
Pilot Pressure to Swing Pump
Pilot Accumulator Pressure
Power Shift Pressure (Main Hydraulic Pump)
A
B-3
B B-3
LS2 A-2
M1 A-4
P A-5
P1 B-5
PG E-4
PS1 A-3
FLUID POWER SYMBOLS
ONE POSITION
TWO POSITION
THREE POSITION
VENTED
PRESSURIZED
RETURN ABOVE FLUID LEVEL
RETURN BELOW FLUID LEVEL
LINES CROSSING LINES JOINING
TWO-WAY
THREE-WAY
FOUR-WAY
SPRING
CONTROL VALVES
RESTRICTION
LINE RESTRICTION
(FIXED)
2-SECTION PUMP
MAIN
AUX.
SPRING
(ADJUSTABLE)
VARIABILITY
LINE RESTRICTION
(VARIABLE)
LINE RESTRICTION
VARIABLE and PRESSURE
COMPENSATED
PRESSURE
COMPENSATION
PUMP: VARIABLE and
PRESSURE COMPENSATED
ENERGY TRIANGLES
HYDRAULIC PNEUMATIC
MEASUREMENT
PRESSURE
TEMPERATURE
FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
MANUAL CONTROL SYMBOLS
HYDRAULIC MOTORS
FIXED
DISPLACEMENT
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
HYDRAULIC PUMPS
FLUID STORAGE RESERVOIRS
CROSSING AND JOINING LINES
VALVE ENVELOPES
VALVE PORTS
BASIC COMPONENT SYMBOLS
FLUID CONDITIONER
PUMP or MOTOR
FIXED
DISPLACEMENT
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVES
PILOT CONTROL SYMBOLS
RELEASED PRESSURE
EXTERNAL RETURN
INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED
COMPLETE
INTERNAL
SUPPLY PRESSURE
ACCUMULATORS
SPRING LOADED GAS CHARGED
SOLENOID
or MANUAL
SOLENOID
and PILOT
SOLENOID and
PILOT or MANUAL
COMBINATION CONTROLS
SOLENOID
SERVO
THERMAL
DETENT
HYDRAULIC AND PNEUMATIC CYLINDERS
DOUBLE ACTINGSINGLE ACTING
BASIC
SYMBOL
SPRING
LOADED
CHECK VALVES
TWO
POSITION
INFINITE
POSITIONING
FLOW IN ONE
DIRECTION
FLOW ALLOWED IN
EITHER DIRECTION
THREE
POSITION
CROSS
FLOW
PARALLEL
FLOW
INTERNAL PASSAGEWAYS
NORMAL POSITION
A B
P T
A B
P T
SHIFTED POSITION
INFINITE POSITION
CONTROL VALVES
ATTACHMENT
MANUAL SHUTOFF
SHUTTLE PILOT
CONTROLLED
ELECTRICAL SYMBOLS
Hydraulic Symbols (Electrical)
325-AG135 PK-14
Circuit Identification
Number
Wire Color
Wire Gauge
Harness identification code
This example indicates
wire 135 in harness "AG".
325-PK-14
Wire Gauge
Wire Color
Circuit Number
Identification
Wire Number Identification Codes
Current Standard
Previous Standard
Electrical Schematic Example
Hydraulic Schematic Example
325-PK
Wire Color
Circuit Number
Identification
B
A
Wire
Wire
(EXAMPLE VALVE)
Current Standard
Transducer
(Fluid)
Transducer
(Gas / Air)
G
Generator
Electrical Wire
Pressure Switch
M
Electric Motor
Pressure Switch
(Adjustable)
Temperature Switch
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
Electrical Symbols (Electrical)
T
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
PILOT PUMP OUTPUT
DRIVE PUMP OUTPUT
HIGH PRESSURE CUTOFF CIRCUIT
DRIVE AND IDLER PUMPS COMBINED CIRCUIT
FAN PUMP AND CIRCUIT
SUPPLY LINE
STICK CYLINDER AND CONTROL CIRCUIT
LEFT TRAVEL MOTOR AND CONTROL CIRCUIT
ATTACHMENT CONTROL CIRCUIT
SWING MOTOR AND CONTROL CIRCUIT
DRAIN / RETURN LINE
SWING BRAKES
IDLER PUMP OUTPUT
BUCKET CYLINDER AND CONTROL CIRCUIT
RIGHT TRAVEL MOTOR AND CONTROL CIRCUIT
BOOM CYLINDER AND CONTROL CIRCUIT
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
CALLOUTS
Taps (Pressure, Sampling, Sensor - by letter)
YY
(52) VALVE GP - CONTROL
138-1234
Callout Number
(Machine Location from
Component LocationsTable)
Component
Name
Part Number
COUNTERWEIGHT REMOVAL CONTROL CIRCUIT
Components are shown installed on a fully operable machine with the key and engine off,
and with parking brake set.
Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
THIS SCHEMATIC IS FOR THE 390D EXCAVATOR
PART NUMBER: 297-0224, CHANGE: 00, VERSION: HE
ATTACHMENT: COUNTERWEIGHT REMOVAL
12345678
A
B
C
D
E
F
12345678
A
B
C
D
E
F
(1) ACCUMULATOR GP
CHARGED
RETURN LINES
335-0538
(2) ACCUMULATOR GP
HYD, (CHARGED)
335-0547
(8) FILTER GP
OIL (HYDR) RETURN
242-6878
(9) FILTER GP
OIL (HYDR)(RETURN)
234-4531
(10) FILTER GP
OIL (HYDRAULIC)
185-0336
(11) FILTER GP
OIL (HYDR) (CASE DRAIN, MOTORS)
6E-5534
(13) MANIFOLD / VALVE GP
LOAD SENSING
310-0122
(14) MOTOR GP
FAN
247-8978
(15) MOTOR GP
HYDRAULIC
FAN
225-4614
(16) MOTOR GP
SWING (FRONT)
295-9447
(17) MOTOR GP
SWING (REAR)
295-9446
(18) MOTOR GP
TRAVEL (LEFT)
209-5895
(19) MOTOR GP
TRAVEL (RIGHT)
209-5895
(20) PUMP GP
FAN MOTOR
170-9918
(21) PUMP GP
HYD, SWING
295-9678
(22) PUMP GP
HYD., MAIN
334-9990
(23) PUMP GP
PILOT
155-9222
(28) SWIVEL GP
295-9595
(30) VALVE GP
CHECK
173-3429
(31) VALVE GP
CHECK
201-9382
(32) VALVE GP
CHECK
201-9381
(33) VALVE GP
CONTROL, SWING
241-8929
(34) VALVE GP
MAIN CONTROL
295-7745
(35) VALVE GP
MANIFOLD / REDUCING
140-0736
(36) VALVE GP
SOL. (HIGH PRESSURE
CUTOFF)
352-6819
(37) VALVE GP
SWING CUSHION
116-3420
(38) VALVE GP
TRAVEL CNTRBALANCE, LEFT
155-9200
(39) VALVE GP
TRAVEL
CNTRBALANCE, RIGHT
155-9200
LS2
PS1
M1
P
P1
B
A
PG
(26) SENSOR AS
PRESSURE MAIN PUMP
260-2180
(27) SENSOR AS
PRESSURE
SWING PUMP
260-2180
(25) SENSOR AS
PRESSURE
OVER LOAD
WARNING
221-8859
(24) SENSOR AS
PRESSURE
LOAD SENSING
221-8859
(3) BREATHER GP
212-5467
(4) COOLER GP
HYDRAULIC OIL
210-8157
(29) TANK AS
HYDRAULIC OIL
227-0678
(12) FILTER GP
OIL (HYDR) (CASE DRAIN, PUMPS)
6E-5534
(5) CYLINDER GP
BOOM
(7) CYLINDER GP
STICK
(6) CYLINDER GP
BUCKET
(50) VALVE AS
MANUAL
4I-6188
(51) VALVE GP
CHECK
(PILOT OPERATED)
087-5087
(52) VALVE GP
COUNTERWEIGHT CONTROL
123-2515
(53) VALVE GP
PILOT
(COUNTERWEIGHT)
123-2514
(54) VALVE GP
SHUTTLE
4T-1860
TRAVEL MOTOR (RIGHT)TRAVEL MOTOR (LEFT)
Pi5
Pi4
Pi3
Pi2
Pi1
PSA4
PSA3
PSA2
PSA1
PAC
DR1
DR2
DR3
DR4
DR5
DR6
P-IN
T-OUT
Pi6
DR6
DR5
G
T2
T1
R
A
M2
A
S
DR1
DR
S
M1
L2
L1
P2
D2
S1
D1
P1
PS1
SA1
SA2
a1
a2
LS1
LS2
AL3
BL3
PP3
T1
T2
BG
B
A
AG
BG AG
A
B
T2
T1
PP3
A
DR
B
DR
A
B
DR1
PS2
Pi1
P. P.I
P. P.O
SWING MOTOR (FRONT) SWING MOTOR (REAR)
DB
PG
SDr2
PT
SDr1
M
M
PG2 DBPG1
PB
PA
B
BA
PA
PB
A
A1
B1
A1
B1
(R)
(L)
(R)
(L)
(FWD)
(FWD)
(BKWD)
(BKWD)
L1
G
Dr
L2
T
C1
C2
P
Dr
PF PR
BR2 AR2 BR3 AR3
AL2 BL2
AL1 BL1
PR
PF
AR1BR1
BR2 AR2 BR3 AR3
A
B
L
BR
L
BR
A
B
Qmax Qmin
(BKWD)
(BKWD)
(IN)
(FWD)
(FWD)
(OUT)
STICK
TRAVEL(L)
TRAVEL(R)
(CLOSE)
(UP)
(OPEN)
(DOWN)
BOOM
BUCKET
ATCH
HPC-ON
aR3aR2aR1
bR3bR2bR1
R2
aL1aL2aL3
bL1bL2bL3
R1
HPC-OFF
(RET)
(EXT)
PS2
PS2
PS3
PS3 DR3
DR3 DR2
DR2
PS4 DR4
Pi2
Pi2
DR4
MU
PS4
AL1 BL1
BR1AR1AL2 BL2
MU
SP
PR
PD
PG
PB
Pi
P T
A1
T
T C
X
B1
P
CV
P

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